2000 Ford Ranger XL 4.0L MIL Lamp onVIN: 1FTZR15X4YP0135: b1s2 heater failure. ... can't get to stay
off. it keeps setting a code p0135. i replaced the sensor
and the light came back on. i checked the circuit and i
have battery voltage at the heater wire but no ground path
on the other wire. the sensor seems to switch somewhat but
i know...

2000 Ford Ranger XL 4.0L MIL Lamp onVIN: 1FTZR15X4YP0135: b1s2 heater failure. ... can't get to stay
off. it keeps setting a code p0135. i replaced the sensor
and the light came back on. i checked the circuit and i
have battery voltage at the heater wire but no ground path
on the other wire. the sensor seems to switch somewhat but
i know...